package com.zhang.springcloud.alibaba.service.impl;

import com.zhang.springcloud.alibaba.dao.OrderDao;
import com.zhang.springcloud.alibaba.domain.Order;
import com.zhang.springcloud.alibaba.service.AccountService;
import com.zhang.springcloud.alibaba.service.OrderService;
import com.zhang.springcloud.alibaba.service.StorageService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;

@Service
@Slf4j
public class OrderServiceImpl implements OrderService {

    @Resource
    private OrderDao orderDao;

    @Resource
    private StorageService storageService;

    @Resource
    private AccountService accountService;

    /**
     *
     * 创建订单->调用库存微服务扣减库存->调用账户服务扣减账户余额->修改订单状态
     * 简单说：
     *  下订单->减库存->减余额->改状态
     *
     * @param order
     */
    @Override
    public void create(Order order) {
        log.info("---------->开始新建订单");
        // 1 新建订单
        orderDao.create(order);

        log.info("---------->订单微服务开始调用库存，做扣减");
        // 2 扣减库存
        storageService.decrease(order.getProductId(),order.getCount());
        log.info("---------->订单微服务开始调用库存，做扣减end");

        log.info("---------->订单微服务开始调用账户，做扣减");
        // 3 扣减账户
        accountService.decrease(order.getUserId(),order.getMoney());
        log.info("---------->订单微服务开始调用账户，做扣减end");

        // 4 修改订单状态开始，从0到1,1代表已经完成
        log.info("------>修改订单状态开始");
        orderDao.update(order.getUserId(),0);
        log.info("------>修改订单状态结束End");

        log.info("下订单结束。。。。。。");

    }
}
